NCI EVS

NCI Enterprise Vocabulary Services (EVS) has provided terminology content, tools, and services to accurately code, analyze and share cancer and biomedical research, clinical and public health information.

Another alternative common terms, from OHDSI project, ATHENA

This is part of a big project for more general usage. It is for the OMAP CDM – OMAP Common Data Model. The current version is v5.4.